Carlos,
I appreciate you're taking the time to make clear this is not a confrontational thread. Matthias does tons of work, and not only for Gallery but for Dotnetnuke in general. He's probably just frustrated, but since his mother tongue is not English, sometimes his eloquence comes accross as a harsh affirmation he did not intend to make. He's never unpolite, just sincere. Thanks for suporting him.
While you're right on the stakeholder's importance for the project, you must not confuse the Corporation and its endeavors with the Open Source project, they are related but they are not the same. I am not going to delve into the details that differentiate them, just make a simple point. Projects are still ran by volunteers.
It is an absolute challenge to run a project where it is impossible to determine work hours up front. It causes deadlines to slip, and in general tons of uncertainty. That being said, we do our best to embrace the ideals of giving back. Gallery is almost back on track, and I encourage you to continue to give feedback as soon as we release the next version, which will only be a complete port to .net 2.0.